What Size Of Gas Hot Water Heater Do I Need

Water heater sizing guide from a o.

What size of gas hot water heater do i need.

Like a hot water tank for 5 people will require at least a 60 gallon tank. To reduce flow rates install low flow water fixtures. What size water heater do i need for my house. Match the capacity of the hot water source to your exact needs.

In most cases you would need a 50 gallon tank water heater in this situation considering most 40 gallon models have a lower fhr. You can estimate the necessary tank capacity in gallons based on the number of people in the house. A 125 160l tank for a continuous system or 250 315l for off peak. A tank of about 135 170l however there are also instantaneous system options.

Hot water tank size for family of 5 a hot water tank size for family of 5 would be in the 230 300l range 60 80 gallons. To determine temperature rise subtract the incoming water temperature from the desired output temperature. For an instantaneous hot water unit servicing two water saving shower heads you would need a hot water heater with a flow rate of at least 16l min. Together that equals 72 gallons of hot water needed.

Learn what size water heater you need based on your specific needs and priorities. Gallons per minute gpm is the key when it comes to sizing tankless water heaters. Storage tank hot water heaters are sized based on btu input and capacity in gallons. For a tank style heater household size is a simple indicator of hot water needs.

4 6 people. The flow rate through the demand water heater would need to be at least 3 25 gallons 12 3 liters per minute. To put it briefly for a family of 4 you will need. If your family size is 5 or more you ll need an 80 gallon tank electric or a 50 gallon tank natural gas or liquid propane.

About four square metres of solar collector area two panels and a 300 360l tank. 2 4 people. Household size gas storage hot water heater size 1 3 people. Again the more you rely on hot water on a regular basis the more btus and capacity you ll need.

3 5 people. In this instance you would need a water heater with a first hour rating of at least 72 gallons before you run out of hot water during that 1 hour period. Since tankless water heaters supply endless hot water you don t have to worry about capacity but instead think in terms of water flow rate.